← × 5 and × 50: halve first lesson New set →

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 545 · 40 questions
TalentJR

The fast method (Halve first): Halve the number. × 5: multiply the half by 10. × 50: multiply the half by 100. Odd number? Its half ends in .5 — 43 → 21.5 — and × 10 moves the point: 215.

NameDateTime takenScore ___ / 40
  1. 1.89 × 50 =
  2. 2.67 × 50 =
  3. 3.46 × 50 =
  4. 4.70 × 5 =
  5. 5.91 × 50 =
  6. 6.15 × 50 =
  7. 7.30 × 5 =
  8. 8.34 × 5 =
  9. 9.29 × 5 =
  10. 10.68 × 50 =
  11. 11.85 × 50 =
  12. 12.16 × 50 =
  13. 13.90 × 50 =
  14. 14.82 × 50 =
  15. 15.66 × 5 =
  16. 16.26 × 5 =
  17. 17.80 × 5 =
  18. 18.12 × 50 =
  19. 19.33 × 50 =
  20. 20.56 × 50 =
  21. 21.28 × 50 =
  22. 22.55 × 5 =
  23. 23.49 × 5 =
  24. 24.76 × 5 =
  25. 25.20 × 5 =
  26. 26.83 × 5 =
  27. 27.31 × 50 =
  28. 28.84 × 5 =
  29. 29.29 × 50 =
  30. 30.15 × 50 =
  31. 31.32 × 50 =
  32. 32.51 × 50 =
  33. 33.92 × 5 =
  34. 34.74 × 5 =
  35. 35.27 × 5 =
  36. 36.66 × 5 =
  37. 37.93 × 5 =
  38. 38.64 × 5 =
  39. 39.38 × 5 =
  40. 40.84 × 5 =

Answer key

  1. 4450
  2. 3350
  3. 2300
  4. 350
  5. 4550
  6. 750
  7. 150
  8. 170
  9. 145
  10. 3400
  11. 4250
  12. 800
  13. 4500
  14. 4100
  15. 330
  16. 130
  17. 400
  18. 600
  19. 1650
  20. 2800
  21. 1400
  22. 275
  23. 245
  24. 380
  25. 100
  26. 415
  27. 1550
  28. 420
  29. 1450
  30. 750
  31. 1600
  32. 2550
  33. 460
  34. 370
  35. 135
  36. 330
  37. 465
  38. 320
  39. 190
  40. 420

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths